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7748651 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, housing_bore_diameter: 4.001 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN, accommodated_shaft_diameter: 2.281 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-733-4733, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
7748651
NSN: 5330-00-733-4733
FSC: 5330
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL CASE
housing_bore_diameter4.001 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
accommodated_shaft_diameter2.281 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN
NSN5330-00-733-4733
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7748651 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HOUSING BORE DIAMETER: 4.001 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
•
MATERIAL: STEEL CASE
•
ACCOMMODATED SHAFT DIAMETER: 2.281 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER4.001 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
MATERIALSTEEL CASE
ACCOMMODATED SHAFT DIAMETER2.281 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2754-4Interchangeable
interchangeable cross-reference
interchangeable
C218652-1Interchangeable
interchangeable cross-reference
interchangeable
100042Interchangeable
interchangeable cross-reference
interchangeable
Z1200AInterchangeable
interchangeable cross-reference
interchangeable
5080-0011Interchangeable
interchangeable cross-reference
interchangeable
01961Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7748651?
7748651 is a SEAL,PLAIN ENCASED.
What parts can replace 7748651?
There are 13 known substitutes for 7748651: 2754-4, C218652-1, 100042 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7748651?
7748651 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-733-4733. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026